Pen UNO: The Most Minimal Pen

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Pen UNO is a sleek and super minimal all-aluminum pen available in different colors like space grey, gold, rose gold, red and black. It uses the Hi-Tec C Coleto gel ink cartridge which is widely available in a variety of colors and lineweights.

With only 5.3 mm in diameter, Pen UNO is one of the thinnest pens in production. The grip section is wider for a very comfortable writing experience and also doubles as a twisting cap to protect the pen tip when not in use. A few turns of the barrel will open or close the pen.

100% Space-Grade Aluminum 6061-T6511

Red, Gold, Space Grey, Rose Gold

Twist Mechanism

The innovative grip section also serves as cap. A few flicks of your thumb will slide the barrel up and down to cover or expose the pen tip.

Hi-Tec C Coleto Ink Refill

Pen UNO uses the beloved Hi-Tec C Coleto gel ink cartridge which is super smooth and reliable. It is widely available online in a variety of colors and lineweights including 0.3 mm, 0.4 mm, and 0.5mm

Free Shipping Worldwide

At ensso we always offer free shipping to any country around the world. It doesn't matter if you buy 1 or 10 items.

Minimal Design

Pen UNO is perhaps the most minimal pen in the market. It is the study of liberating a pen of unnecessary parts and ornaments. The design aims to be a simple yet powerful solution focused on the details.

Pen UNO is really thin but the grip section is 3/8" in diameter, similar to a standard pencil, which provides the most comfortable writing experience. Your hand and brain will remember the old days writing with a wood pencil. In addition, the Hi-Tec C Coleto gel ink cartridge is a favorite of many because of its smoothness, reliability, and precision.

"What makes this pen unique is how you retract the tip. Rather than a click mechanism of some sort, the refill stays fixed and stationary in the barrel while the user twists the threaded grip section until the barrel moves its way up and the tip is exposed. Pretty neat!" - The Clicky Post

CHRISTMAS SALE - 30% OFFDEC 1 - Dec 15

IN STOCK - LIMITED QUANTITIES

PIUMA is an investigation of liberating a fountain pen from all unnecessary components and ornaments. PIUMA is machined out of solid blocks of titanium, brass, and aluminum using the latest CNC technology. In order to provide an incredibly smooth writing experience, PIUMA is also equipped with the finest German-made nibs.

The design has been refined with the utmost attention to detail. Each component has been meticulously designed taking into consideration its function and aesthetic. The interchangeable nib system screws inside the pen grip and resides a couple of millimeters in to create a unibody appearance. The cap threads are wider and allow a fast opening and closing of the pen. In addition, a millimetric-rounded gap defines the connection between the cap and the body.

PIUMA borrows its name from the same Italian word, which means feather. It pays homage to the simplicity of the first pens made from bird feathers. It is a writing instrument to be used for a lifetime and enjoyed by generations - a combination of the highest manufacturing quality and timeless design.

CHRISTMAS SALE - 30% OFFDEC 1 - Dec 15

IN STOCK - ONLY 8 AVAILABLE

PIUMA is an investigation of liberating a fountain pen from all unnecessary components and ornaments. PIUMA is machined out of solid blocks of titanium, brass, and aluminum using the latest CNC technology. In order to provide an incredibly smooth writing experience, PIUMA is also equipped with the finest German-made nibs.

The design has been refined with the utmost attention to detail. Each component has been meticulously designed taking into consideration its function and aesthetic. The interchangeable nib system screws inside the pen grip and resides a couple of millimeters in to create a unibody appearance. The cap threads are wider and allow a fast opening and closing of the pen. In addition, a millimetric-rounded gap defines the connection between the cap and the body.

PIUMA borrows its name from the same Italian word, which means feather. It pays homage to the simplicity of the first pens made from bird feathers. It is a writing instrument to be used for a lifetime and enjoyed by generations - a combination of the highest manufacturing quality and timeless design.

CHRISTMAS SALE - 30% OFFDEC 1 - Dec 15

IN STOCK - LIMITED QUANTITIES

PIUMA is an investigation of liberating a fountain pen from all unnecessary components and ornaments. PIUMA is machined out of solid blocks of titanium, brass, and aluminum using the latest CNC technology. In order to provide an incredibly smooth writing experience, PIUMA is also equipped with the finest German-made nibs.

The design has been refined with the utmost attention to detail. Each component has been meticulously designed taking into consideration its function and aesthetic. The interchangeable nib system screws inside the pen grip and resides a couple of millimeters in to create a unibody appearance. The cap threads are wider and allow a fast opening and closing of the pen. In addition, a millimetric-rounded gap defines the connection between the cap and the body.

PIUMA borrows its name from the same Italian word, which means feather. It pays homage to the simplicity of the first pens made from bird feathers. It is a writing instrument to be used for a lifetime and enjoyed by generations - a combination of the highest manufacturing quality and timeless design.

CHRISTMAS SALE - 30% OFFDEC 1 - Dec 15

IN STOCK - LIMITED QUANTITIES

PIUMA is an investigation of liberating a fountain pen from all unnecessary components and ornaments. PIUMA is machined out of solid blocks of titanium, brass, and aluminum using the latest CNC technology. In order to provide an incredibly smooth writing experience, PIUMA is also equipped with the finest German-made nibs.

The design has been refined with the utmost attention to detail. Each component has been meticulously designed taking into consideration its function and aesthetic. The interchangeable nib system screws inside the pen grip and resides a couple of millimeters in to create a unibody appearance. The cap threads are wider and allow a fast opening and closing of the pen. In addition, a millimetric-rounded gap defines the connection between the cap and the body.

PIUMA borrows its name from the same Italian word, which means feather. It pays homage to the simplicity of the first pens made from bird feathers. It is a writing instrument to be used for a lifetime and enjoyed by generations - a combination of the highest manufacturing quality and timeless design.

CHRISTMAS SALE - 30% OFFDEC 1 - Dec 15

IN STOCK - ONLY 16 AVAILABLE

PIUMA is an investigation of liberating a fountain pen from all unnecessary components and ornaments. PIUMA is machined out of solid blocks of titanium, brass, and aluminum using the latest CNC technology. In order to provide an incredibly smooth writing experience, PIUMA is also equipped with the finest German-made nibs.

The design has been refined with the utmost attention to detail. Each component has been meticulously designed taking into consideration its function and aesthetic. The interchangeable nib system screws inside the pen grip and resides a couple of millimeters in to create a unibody appearance. The cap threads are wider and allow a fast opening and closing of the pen. In addition, a millimetric-rounded gap defines the connection between the cap and the body.

PIUMA borrows its name from the same Italian word, which means feather. It pays homage to the simplicity of the first pens made from bird feathers. It is a writing instrument to be used for a lifetime and enjoyed by generations - a combination of the highest manufacturing quality and timeless design.

Pen UNO is a sleek and super minimal all-aluminum pen available in different colors including space grey, gold, rose gold, red and black. It uses the Hi-Tec C Coleto gel ink cartridge which is widely available online in a variety of colors and line-weights.

Pen UNO in brass is the new addition to the family of UNO writing instruments. This sleek and super minimal pen is machined out of a solid block of brass. This pen is three times heavier than the aluminum pen, providing a very nice balance and writing feedback. The metal is left raw to be able to acquire a patina with time. If so desired, such patina could be removed with any brass cleaning products.

NOW IN STOCK - LIMITED QUANTITIES

Our PIUMA minimal fountain pen is designed to allow changing the nibs. We offer additional nibs in various sizes (line thickness) and materials. All nibs fit any PIUMA fountain pen and it is very easy to swap them. You just need to unscrew the entire nib system and screw in a different one.